Really long shot - BBC Radio Wind in the Willows

HI all, really long shot question here but is anyone else subscribed to the BBC Radio Wind in the Willows padcasts? Episode 4 is no longer available to download and my iTunes seems not to have downloaded it when it was.... despite mepurchasing loads of other tracks within the week the file was available...
If anyone has a copy, I'd be massively grateful, as it's of little use as a series for school if one episode's missing
PM me if you can help...
Thanks!